WPT
wpt / media-source / mediasource-addsourcebuffer.html
Spec: Media Source Extensions™ ↗
Runs: Chrome 155.0.8039.0 (wpt@6ec9fd59f, 2026-09-03) | Firefox 157.0a1 (wpt@6ec9fd59f, 2026-09-03) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-795e1 (wpt@7e3d005d7, 2026-09-03) | Servo Servo 0.6 (wpt@09159dcb3, 2026-09-02) | Blitz 188486089 (wpt@a95401e4e, 2026-09-02)
View on the Blitz WPT dashboard | Open test on wpt.live | wpt.fyi
| Chrome | Firefox | Safari | Ladybird | Servo | Blitz | |
|---|---|---|---|---|---|---|
| Total | 9/10 | 10/10 | 10/10 | 10/10 | 0/10 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Test addSourceBuffer() in 'ended' state. | PASS | PASS | PASS | PASS | FAIL | — |
| Test addSourceBuffer() with empty type | PASS | PASS | PASS | PASS | FAIL | — |
| Test addSourceBuffer() with null | FAIL | PASS | PASS | PASS | FAIL | — |
| Test addSourceBuffer() with unsupported type | PASS | PASS | PASS | PASS | FAIL | — |
| Test addSourceBuffer() with Vorbis and VP8 | PASS | PASS | PASS | PASS | FAIL | — |
| Test addSourceBuffer() with Vorbis and VP8 in separate SourceBuffers | PASS | PASS | PASS | PASS | FAIL | — |
| Test addSourceBuffer() video only | PASS | PASS | PASS | PASS | FAIL | — |
| Test addSourceBuffer() audio only | PASS | PASS | PASS | PASS | FAIL | — |
| Test addSourceBuffer() with AAC and H.264 | PASS | PASS | PASS | PASS | FAIL | — |
| Test addSourceBuffer() with AAC and H.264 in separate SourceBuffers | PASS | PASS | PASS | PASS | FAIL | — |